Analysis Of Income And Expense [Abstract]

NX Filtration N.V. - Filing #1842248

Concept	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2021-01-01 to 2021-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31	2020-01-01 to 2020-12-31
Analysis of income and expense [abstract]
Revenue [abstract]
Revenue	—	—	3,173,000 EUR	—	—	—	671,000 EUR	—
Material income and expense [abstract]
Research and development expense	—	—	247,000 EUR	—	—	—	361,000 EUR	—
Revenue and other operating income	—	—	4,069,000 EUR	—	—	—	1,069,000 EUR	—
Operating expense	—	—	18,783,000 EUR	—	—	—	3,844,000 EUR	—
Expenses by nature [abstract]
Raw materials and consumables used	—	—	1,428,000 EUR	—	—	—	289,000 EUR	—
Classes of employee benefits expense [abstract]
Employee benefits expense	—	—	3,833,000 EUR	—	—	—	1,781,000 EUR	—
Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss [abstract]
Depreciation and amortisation expense [abstract]
Depreciation expense	—	—	1,076,000 EUR	—	—	—	592,000 EUR	—
Amortisation expense	—	—	315,000 EUR	—	—	—	211,000 EUR	—
Other expenses, by nature	—	—	12,102,000 EUR	—	—	—	967,000 EUR	—
Disclosure of attribution of expenses by nature to their function [text block]	—	—	—	—	—	—	—	—
Disclosure of attribution of expenses by nature to their function [abstract]
Disclosure of attribution of expenses by nature to their function [line items]
Comprehensive income, continuing and discontinued operations [abstract]
Comprehensive income	- EUR	- EUR	11,354,000 EUR	11,354,000 EUR	2,092,000 EUR	- EUR	2,092,000 EUR	- EUR
Comprehensive income attributable to owners of parent, continuing and discontinued operations [abstract]
Comprehensive income, attributable to owners of parent	—	—	11,354,000 EUR	—	—	—	2,092,000 EUR	—